C#: Accept consistency changes.

Author: MathiasVP

csharp/ql/consistency-queries/DataFlowConsistency.ql

@@ -71,4 +71,6 @@ private class MyConsistencyConfiguration extends ConsistencyConfiguration {
   }
 
   override predicate reverseReadExclude(Node n) { n.asExpr() = any(AwaitExpr ae).getExpr() }
+
+  override predicate identityLocalStepExclude(Node n) { this.missingLocationExclude(n) }
 }

csharp/ql/test/experimental/ir/offbyone/CONSISTENCY/DataFlowConsistency.expected

@@ -0,0 +1,7 @@
+identityLocalStep
+| test.cs:17:41:17:44 | this access | Node steps to itself |
+| test.cs:34:41:34:44 | this access | Node steps to itself |
+| test.cs:52:41:52:44 | this access | Node steps to itself |
+| test.cs:67:41:67:44 | this access | Node steps to itself |
+| test.cs:77:22:77:24 | this access | Node steps to itself |
+| test.cs:90:41:90:44 | this access | Node steps to itself |